Hi, I am designing a Picture Viewer application. I have a problem to find a way for fitting the whole high resolution picture into the form by using a picture box component. What I want to do is to use the whole form for displaying the whole picture so that the whole picture will poss...more >>

Hi, I want to know which control the focus was on last. I have several listview controls on my form and when I click on "Update" button, depending on where the focus was I want to perform different tasks. I tried Focused property on each listview control but unfortunately by the time the butt...more >>

I am a little confused about support of OLEDB for Jet 4. Microsoft removed it from their MDAC 2.7 package (only god knows why). However, even without it my machine is able to connect to an Access database using the provider, I just don't know where I got it from. Is it included with the OS? Wh...more >>

i want to know that whether i can integrate a c# project to a c++ project. i know that one of the way is to create a c# dll and call the c# dll function in the c++ project. however, i dont know the exact way to do it. Do any suggestion ?? thanks. :cry: Posted Via Usenet.com Premium Usenet N...more >>

Hi, Is there a native .NET way of interrogating SysInfo details e.g. amount of physical RAM, OS version etc, or does it still involve Win32 API? Any assistance gratefully received. Best regards, Mark Rae ...more >>

Hi, When I check whether one my thread are running I use a bitmask like this: (myThread.ThreadState & (ThreadState.Stopped | ThreadState.Unstarted)) == 0 (got it from MSDN) How would I check whether a thread has been started or not without using the property IsAlive? I'm trying to use a b...more >>

Hi I have seen few components which show progress bar while file uploading to web server . Just want to know what is the logic behind this is. Mr.Bug ...more >>

Hello All, I am doing a feasibility study to develop an inhouse repository for software products. I am looking at C# and possible ASP.NET to develop this. Is it possible for me to read the contents of a tape drive from C#. similarly write files to a Tape drive as well? Thanks for your h...more >>

Hi folks, just learning ASP.Net programming in C#, working my way through some books on the subject. I'm currently working on the Security chapter. I've entered the example from the book using Windows authentication and Forms authentication. When I run the programs I get the following messag...more >>

Hi, Why C# compiler returns "Use of unassigned local variable 'reportParams'" during compilation of this code? System.Data.SqlClient.SqlDataReader reportParams; try { reportParams = SqlHelper.ExecuteReader(Global.ConnectionString , "up_Report"); } catch (Exception ex) { Log(ex);...more >>

I have an HttpWebRequest object that is performing an HTTP POST query on an HTTP server that is returning the proper status code of either 301 or 303 (redirect) and a Location header, but the HttpWebRequest object isn't following it and is returning the full body of the initial HTTP response ins...more >>

Anyone know if MSDN plans on releasing a C# Resource Kit, and if so, when? The VB.NET and ASP.NET ones are so excellent, I would love to see one for C# Thank Yaron...more >>

In my aspx page, I want to import a .cs file, but I don't want to compile to dll. Is it possible? I know that codebehind can do it in Page level, but it forces me to use inherits which I don't want to: @Page Inherits="code.page" src="code.cs" In this case, my code.cs has to inherits from Sy...more >>

i wrote a Windows Service program (myService) for testing. OnStart: just create a new file in my directory. Everything seems fine. But when i open the Services Panel, try to start the myService, it pops up the following message: "The myService service on Local Computer started and then stopp...more >>

I am dragging and droppng from a picture box component to a listbox control. I am calling the DoDragDrop method from the Picture boxes Mouse down event handler. private void pictureBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) if ((e.Button & MouseButtons.Left) == Mou...more >>

Hi, Is there a way to read the volume from the volumecontrol and detect when it changes ? Thanks in advance ...more >>

Hi, I need to make a form that is minimised flash in the task bar. I used to do it with an old winapi call "FlashWindow(hwnd, false)". Does anyone know how to do this in .NET? Steve ...more >>

I'm working my way through the IBindingList interface, and I am puzzled by something: Theexample in the IBindingList Overview (.NET Framework documentation) uses explicit implementation for each of the IBindingList elements implemented in the collection class. For example, the implementation ...more >>

Hello friends I have a tree structure that I want to cross, looking for a specific node I have tried to develope a recursive function, but when it has to leave, and return the result, it does not stop the execution, and it follows until the end of the tree Can you help with code samples of tree s...more >>

I have an asp.net webservice that is called from an asp.net website, the processes on the web service may take sometime so I call the webservice using the asynchronous method calls, i.e. BeginXXXX(), EndXXXX() etc... I pass a call back into the BeginXXX method so that when the operation has co...more >>

Today's competition is to explain my compiler error. Here's the code: enum RecType { Start, // etc. } byte[] ret = new byte[17]; int pos = 0; RecType Type; .. .. .. ret[pos++] = (Type == RecType.Start ? 0x1 : 0x2); // ERROR The error is: "Cannot implicitly convert type 'int'...more >>

I have a field in a table that allows nulls. I used the wizard to = create a dataset for this table. I now want to add a new row to the = dataset and default in some of the values, but leave some of them null. The Neither of the following lines work: ticketDataSet1.Ticket.AddTicketRow(1, Ses...more >>

Hi.... I'm working on a cache controller and needs to know the current size of the cache object, but how do I get that ? I've got an ArrayList populated with structs and now I want to know the current memory usage of the ArrayList at runtime. I've tried using System.Runtime.InteropServ...more >>

I attempting to serialize an XML document back to a client (Internet explorer). I am using the following code to do this from within a .ASPX page (requested via XMLHttpRequest): XmlDocument mXMLResponse = <<Populated XML Document>> BinaryFormatter formatter = new BinaryFormatter(); forma...more >>

Hi All, Can I install .NET framework SDK ver 1.1 and somehow use it with Visual Studio.NET 2002, so that I've access to all the 1.1 run time classes and can compile against 1.1 assemblies? If I do install .NET framework SDK ver 1.1. what impact will it have on the functioning of VS.NET 2002...more >>

Hi there! I'm fairly new to this, and am trying to create a combo control that has friendly names in the drop down area, and allows the user to type in (and validate) an ip address in the edit box area. I think that I have to create a descendant of the combo box, and trap the keystrokes, va...more >>

Hi, I have a application which runs fine in any PC which has installed .Net1.1 framework and VS2003 but do run in any PC which has installed only .Net framework 1.1. The error I get is this. Any idea please ? PS: --------------------------- WFDesigner.exe - Common Language Runtime Debu...more >>

Hi, I have a application which runs fine in any PC which has installed .Net1.1 framework and VS2003 but do run in any PC which has installed only .Net framework 1.1. The error I get is this. Any idea please ? PS: --------------------------- WFDesigner.exe - Common Language Runtime Debu...more >>

Im trying to save a text file using the following code: RichTextBox t = new RichTextBox(); t.Text = doc.FocusedDocument.Control.Text; SaveFileDialog saveFile1 = new SaveFileDialog(); saveFile1.FileName = doc.FocusedDocument.Text; saveFile1.DefaultExt = "*.txt"; saveFile1.Filter = "Text File|...more >>

Hi! I've got an application with CR viewer. I use dataset as a database for a report. I've got 2 tables. First one has one row and second one has any amount of rows (including 0). I use second table in 'details section' and information from first table in other sections. If second table hasnt...more >>

i want this program every some specific time (15 mins) to do something. I don't know how to do it. Shall i use threads or other technologies? Thanks. ...more >>

Hey people, I'm conducting a mini survey for myself and my boss. After using one particular grid component for a win forms thick client app, we decided it's important to find a faster grid. What defines fast? Fast is when you can scroll through it very fast, or the time it takes to draw the...more >>

Is there a C# equivalent to static keyword in VB.NET? Or, some way to = implement the exactly same functionality in C#?...more >>

In my application, the crystal report engine takes the datas from the DataSet. In my DataSet, there is 16 row. Butr crystal report fetch row 1, row 5, row 9, row 13... What can be the problem? Thank you in advance ...more >>

hi, I want to write a program that every some specific time(say, 15 minutes) do something. But i am out of mind how to do it? Should i use threads or some other technologies? Thanks. Posted Via Usenet.com Premium Usenet Newsgroup Services ----------------------------------------------...more >>

A recent project I am working on is basically an interface to an sql database. I have not done too much with sql databases from the c# area so I am having to learn a few things. I am creating a simple example project which is a simple form which interfaces a database table. It has a dropdown ...more >>

I'm sure this is OOP 101 but I'm confused. I'm writing a simple accounting type application. I created an abstract class called IAccount, which my other account types are derived from. Most of the code on the derived classes is repeated. So it occurred to me that instead of an abstract cla...more >>

How can i use a hashtable created on form1 to form2 How can i view all the values and keys in the hashtable Hashtable called sampHash and is already filled Thanks you...more >>

Hi, Can anyone tell me how to implement the following: I have a dropdownlist containing: abcde alpha amino When a user clicks on the dropdownlist and types "ami", I want it to go to amino. Currently, you can only type in a. Thanks for any help....more >>

I have a class Customer. A customer can have multiple accounts. The account-data is hold internally in a datatable but this implementation detail should be hidden from the user of the class customer. the user of the class customer should be able to use foreach on customer.Accounts and can do a...more >>

Hi There is a column named IsInUsing which data type is bit in my database(MS SQL Server 2000). I want to show this column in a datagrid by setting SqlDataAdapter in GUI design. But the result of this column shown is true or false, it should shown the string Yes or No in my idea. Thanks! ...more >>

If I have an image 400 width by 500 height. I can figure out my aspect ratio like this: float Ratio=((float)nOrigWidth)/((float)nOrigHeight); How can I use this value if I want to change the width to 200? Thanks in advance. Brian K. Williams ...more >>

Hello I have started recently with developmet in c sharp I am developing a windows application , but it some times launced from command line with command line parameterss,, i wanted to know , if there is any way to do this, Would System.console,.readline() would help tried with ths, ...more >>

I have a fairly large dataset that has to be uploaded in to the SQL server table. I use data adapters command update, and that seems to work pretty well ( all records make in to the table and nothing gets left out). However, this mechanism is pretty slow when it come to 80,000 rows(the largest i ...more >>

Hi all, I have a very weird problem with Windows 2000 Advanced server. When I go to view a page as served by IIS I get a 500 Internal server error. I though, ok, bad ASP script so I created a straight HTML file consisting of nothing more than a hello world message. I still receive the same messa...more >>

I have an XML file of data that never changes. So instead of shipping this file, I would like to add it to the project in Visual Studio and embed it in the assembly, and then read the file in from the assembly. Is this possible? Jon...more >>

Does anyone have an example of how to call this API within C#?...more >>

I want to create collection that uses two keys to retrieve the value. Here is what I am trying to do.. I want to read XML document like this below to memory into collection object on startup. <Measures> <Module Name="Module1"> <Measure Name="Measure1" Format="Currency"> ...more >>

We need to make a component in C# that saves almost the same info as the log files in IIS does and we need to do it for all sites in IIS6, how can it be done It's like an ISAPI file that were used in IIS5 but we need to do it in C# and for IIS6....more >>

hi all I would like to write a network discovery tool, that will go through a given ip range and see what devices are connected to the network. I would also liek to be able to get the MAC address' of the devices attached.. Any ideas how i can do this in c# I really dont want to have to do a p...more >>

I am new to c#. I want to do work in C# for data base and web servicing.So where to start. Any url containing articles for beginers. How much time it takes for normal person to learn. For data base and web services vb net is strong or c# Where can we learn the frame work of C#( articles). ...more >>

I got a DLL that reads some RAW Double Data from a File to an Array The DLL works fine This is the Header of the double_read function int dll_dbl_read (const char * fnam, /* File name to read from * int * res, /* returns int[4]* float * len, ...more >>

Hi, I am interested in knowing what directory structure most people are using for their projects. Here's what I have and the problem I am encoutering: I have setup a directory structure like this: D:\C#Projects D:\C#Projects\Apps D:\C#Projects\Libraries D:\C#Projects\Release I would...more >>

The common approach to handling thread-to-UI sync seems to be Invoke (as per Chris Sells "PI generator" etc). Just wondering if there is any problem with having the thread write data to shared variables and using a timer on the UI thread to check for changes periodically. I need to collect...more >>

I have a data access component with a function that returns a dataset. I want to access the DataTable[0].Rows.Count property of this dataset, but I get a "Object reference not set to an instance of an object." error when I try to access this property from a Page_Load. The data component functi...more >>

Sorry for the off-topic post, but this is kind of related to my .NET flicker problems. It's quite worse that what I mentioned before. For example, when I show a form modally to its parent, the modal form's controls flicker when they're being initially drawn. I suspect this could be a pr...more >>

Can someone help me understand why the following code won't work? I'm connected to an Access database with a connection object, but I'm unable to populate the dropdown list box on the form. Also, I can't seem to print diagnostics anywhere using "Response.Write" or anything else. pr...more >>